Run the System File Checker by typing sfc /scannow in an elevated Command Prompt to fix corrupted OS files that might interfere with UWP apps.
Problems where the Microsoft Store constantly prompts to install "Gaming Services" despite it already being present. aoeiv-fix-repair-uwp-v3-generic-2-rar
Use a PowerShell command (run as administrator) to reset the Microsoft Store's gaming services: start ms-windows-store://pdp/?productid=9MWPM2CQNLHN . Run the System File Checker by typing sfc